ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,434,822, issued on Oct. 7, was assigned to AeroVironment Inc. (Arlington, Va.).

"Method of assemblying and operating an autorotating payload delivery device" was invented by Joel Ifill (Los Angeles), Zach Taylor (Redondo Beach, Calif.), Jason Litzinger (Canyon Lake, Calif.), Phil Stahlhuth (Pasadena, Calif.) and Marc Berte (Leesburg, Va.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of assembling a delivery payload assembly configured to be deployed from an aircraft and travel along a flight path to a predetermined landing destination includes attaching a tail-kit assembly to a first end of a payload, the tail-kit assembly including a rotor bla...